Aligning image right by text-center class

Bootstrap 4 Code

Output

<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css" integrity="sha384-Zug+QiDoJOrZ5t4lssLdxGhVrurbmBWopoEl+M6BdEfwnCJZtKxi1KgxUyJq13dy" crossorigin="anonymous">

</head>
<body>

<div class="container">
<h3>Aligning images example</h3>
<div class="text-center">
<img src="images/donut.png" class="img-thumbnail" alt="Center aligned image">
</div>
<div class="text-right">
<img src="images/donut.png" class="img-thumbnail" alt="Right aligned image">
</div>
</div>

</body>
</html>